U.S. Army Secretary Ryan McCarthy on Oct.13 said the accuracy of hypersonic missiles now in development is within half a foot of targets.
McCarthy’s remarks during a keynote speech at the Association of the U.S. Army’s virtual annual meeting appear to confirm the previously unannounced accuracy results from the Flight Experiment (FE)-2 test on March 19 of the Block 0 Common Hypersonic Glide Body (CHGB). FE-2 marked the first and only test of a hypersonic glide vehicle since the Navy’s FE-1 test in November 2017.
“Hypersonic missiles are hitting their targets with a variance of only a mere 6 in.,” McCarthy said.
That comment slightly conflicts with general accuracy data from hypersonic missile tests cited by President Trump in a commencement address at West Point in June.
Trump described “a hypersonic missile that goes 17 times faster than the fastest missile currently available in the world and can hit a target 1,000 mi. away within 14 in. from center point.”
CNN subsequently confirmed that the hypersonic missile Trump was referring to was the CHGB, which is the rocket-boosted glider for the Army’s Long Range Hypersonic Weapon and the Navy’s Intermediate Range Conventional Prompt Strike missiles. It was never clear what Trump meant by saying the missile is “17 times faster” than the fastest missile, unless perhaps he was referring only subsonic cruise missiles.
But the half-foot accuracy is impressive for a long-range weapon that is able to maneuver within the atmosphere at hypersonic speeds. It also may suggest the weapon lacks a warhead capable of producing a large area of damage or destruction, so that level of accuracy is necessary.
The Army plans to field an operational prototype of the LRHW in fiscal 2023. The next flight test, scheduled next year, will integrate the CHGB on a newly designed, 34.5-in.-dia. booster stack for the first time.
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